But it must also be noticed that there is one characteristic feature of the typical English village community, namely the importance attached to the right of common pasturage on the fallow field, and in the other arable fields after harvest, which would probably never have developed in any part of the country where only a small proportion of the land was ploughed. There would be too little profit and too much inconvenience attached to the exercise of the right for it to have a chance of being established, or if established, of persisting. Lastly, it seems to me impossible to account for the perfect definition of the two boundaries between parishes early enclosed, without special Acts, and parishes enclosed late by special Acts, the one in the south-east, passing through Suffolk, Essex, and between Surrey and Kent, and the other in the south-west, passing through Somerset and Dorset, except on the assumption that the enclosure movement beginning in these two corners of England, was suddenly checked when it had reached the limits indicated, by the Tudor series of Depopulation Acts, and by the Inquisitions and other measures taken to enforce them. These Acts specially stipulated for the continuance of the ancient customary methods of tillage. A summary of their provisions which affect enclosure will be found in Appendix D. CHAPTER XV. RUN-RIG AND COMMON FIELD. It is a familiar fact that the early open field system of agriculture of Scotland, Wales, and Ireland, known as run-rig or rundale, differed in some important features from the common field system of England. The mere fact suggests a series of questions with regard to the relationships between common field and run-rig; whether, for instance, the more complex common field system was evolved from the more simple and primitive run-rig system; or supposing the two not connected, whether a boundary can be defined on one side of which the early agriculture was of the English type and on the other of the Celtic type; and again, if so, which parts of England lie on the Celtic side of the boundary, and which, if any, of Wales and Scotland lie on the English side. Obviously before considering such questions it is necessary to have a clear grasp of the nature of run-rig, and of the differences between it and the English system.